NEET Biology Questions and Answers 2018 (71-80)

NEET Biology Questions and Answers 2018
71. AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA?
(1) ACCUAUGCGAU (2) UGGTUTCGCAT
(3) AGGUAUCGCAU (4) UCCAUAGCGUA
Answer (3) AGGUAUCGCAU 
72. Match the items given in Column I with those in Column II and select the correct option given below :
Column I                                                    Column II
a. Proliferative Phase                i. Breakdown ofendometriallining
b. Secretory Phase                    ii. Follicular Phase
c. Menstruation                         iii. Luteal Phase
      a b c
(1) ii iii i
(2) i iii ii
(3) iii ii i
(4) iii i ii

Answer (1) ii -a iii-b i-c
73. Match the items given in Column I with those in Column II and select the correct option given below :
Column I                                  Column II
a. Glycosuria                    i. Accumulation of uric acid in joints
b. Gout                            ii. Mass of crystallized salts within the kidney
c. Renal calculi               iii. Inflammation in glomeruli
d. Glomerular                 iv. Presence of nephritis glucose in urine
       a b c d
(1) ii iii i iv
(2) i ii iii iv
(3) iii ii iv i
(4) iv i ii iii
Answer (4) iv -a i-b ii-c iii-d
74. Match the items given in Column I with those in Column II and select the correct option given below:
Column I                             Column II
(Function)               (Part of Excretorysystem)
a. Ultrafiltration               i. Henle's loop
b. Concentration of urine ii. Ureter
c. Transport of urine        iii. Urinary bladder
d. Storage of urine           iv. Malpighian corpuscle

                                           v. Proximal   convoluted tubule
      a b c d
(1) v iv i ii
(2) iv i ii iii
(3) iv v ii iii
(4) v iv i iii
Answer ( 2 ) iv-a i-b ii-c iii-d
75. Which of the following gastric cells indirectly help in erythropoiesis?
(1) Goblet cells
(2) Mucous cells
(3) Chief cells
(4) Parietal cells
Answer(4) Parietal cells
76. Match the items given in Column I with those in Column II and select the correct option given below :
Column I             Column II
a. Fibrinogen  (i) Osmotic balance
b. Globulin     (ii) Blood clotting
c. Albumin     (iii) Defence mechanism

         a b c
(1) (i) (iii) (ii)
(2) (i) (ii) (iii)
(3) (iii) (ii) (i)
(4) (ii) (iii) (i)
Answer (4)
77. Which of the following is an occupational respiratory disorder?
(1) Botulism (2) Silicosis (3) Anthracis (4) Emphysema
Answer (2)Silicosis
78. Calcium is important in skeletal muscle contraction because it
(1) Detaches the myosin head from the actin filament.
(2) Activates the myosin ATPase by binding to it.
(3) Binds to troponin to remove the masking of active sites on actin for myosin.
(4) Prevents the formation of bonds between the myosin cross bridges and the actin
filament.
Answer (3) Binds to troponin to remove the masking of active sites on actin for myosin.
79. Nissl bodies are mainly composed of
(1) Nucleic acids and SER
(2) DNA and RNA
(3) Proteins and lipids
(4) Free ribosomes and RER
Answer (4) Free ribosomes and RER
80. Which of these statements is incorrect?
(1) Glycolysis operates as long as it is supplied with NAD that can pick up
hydrogen atoms
(2) Glycolysis occurs in cytosol
(3) Enzymes of TCA cycle are present in mitochondrial matrix
(4) Oxidative phosphorylation takes place in outer mitochondrial membrane
Answer (4) Oxidative phosphorylation takes place in outer mitochondrial membrane

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